Search Results for: hyperplasia

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen planus

…ndibular epidermis typical of lichen planus are exaggerated in response to longstanding rubbing. Instead of jagged epidermal hyperplasia, which is expected in papules of lichen planus, there is bulbous infundibular acanthosis, which is an…

A verrucous plaque on the lower leg

A verrucous plaque on the lower leg

…h CBC was within normal limits. A biopsy was obtained from the verrucous plaque. Histopathologic findings revealed epidermal hyperplasia and papillomatosis. Granulomas were noted in the dermis showing central suppuration and necrosis (Figure 2). A…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Tricho-, pilo-, folliculo- ?

…lastic infundibula exhibit tricholemmal differentiation at the bulb. In short, tricholemmoma is not a benign neoplasm, but a hyperplasia. “Tricho-” is applied correctly in the name trichotillomania, in which hair shafts are twisted to…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Precanceroses?

…ion.” “Histopathologically, the skin conditions vary greatly, ranging from inflammatory symptoms with epithelial hyperplasia to carcinoma in situ.” Braun-Falco O, Plewig G, Wolff HH, et al. Precanceroses. In: Dermatology. Berlin,…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Precursor Lesions of Melanoma?

…nue to appear throughout adult life, even into the sixth and seventh decades. The histologic picture of atypical melanocytic hyperplasia, dense dermal lymphocytic infiltration with fibroplasias, and new blood vessel formation also serves to separate…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Spongiform Pustular Diseases?

…ge in which the holes are packed with neutrophils (spongiform pustules of Kogoj).” Maize JC. Dermatitis with epidermal hyperplasia. In: Maize JC, Burgdorf WHC, Hurt MA, et al., eds. Cutaneous Pathology. Philadelphia: Churchill Livingstone,…

Eccrine syringofibroadenoma (EFSA): a report of two cases

Eccrine syringofibroadenoma (EFSA): a report of two cases

…antigen (CEA). Discussion Eccrine syringofibroadenoma (ESFA) (synonym: syringofibroadenoma, eccrine syringofibroadenomatous hyperplasia [1], acrosyringeal adenomatosis [2]) is a rare benign adnexal tumor arising most often on the extremities of…

Histologic Diagnosis of Inflammatory Skin Diseases

"Folliculitis" (Infundibulitis)

…nied by comedones, but often is joined by firm papules, and on the nose by a combination of infundibular cysts and sebaceous hyperplasia (rhinophyma). Pyoderma gangrenosum often starts out as suppurative infundibulitis and galvanizes to become…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Dermatofibroma?

…th lipid or hemosiderin pigment. Touton giant cells may be present.” From L, Assaad D. Neoplasms, pseudoneoplasms, and hyperplasia of supporting tissue origin. In: Fitzpatrick TB, Eisen AZ, Wolff K, et al., eds. Dermatology in General…